Staple-feeding device.



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No. 777,218. PATENTED DBC. 13, 1904. W. MCMURRAY. STAPLE FEEDING DEVICE.

APPLICATION EILED DEO.26, 1902.

NO MODEL.

.f7/ je @www UNITED STATES n Patented December 13, 1904.

PATENT OEEICE.

WILLIAM MGMURRAY, OF NE`W YORK, N. Y., ASSIGNOR TO WILLIAMS WIRE HINGINGMACHINE CO., OF NEIV YORK. N. Y.

STAPLE'"FEEDING DEVICE.

SPECIFICATION forming part of Letters Patent No. 777,218, dated December13, 1904. Application led December 26, 1902. Serial No. 136,758. (Nomodel.)

To all whom t may concern.-

Be it known that LVVILLIAM Meli/limitar, a citizen of the United States,and a resident of New York city, in the county of New York and State ofNew York, have invented certain new and useful Improvements inStaple-Feeding- Devices, of which tion.

My invention relates to improvements in the class of machines adapted todrive staples into boards, boxes, and the like wherein staples are fedby means of a track or carrier to stapledriving mechanism; and theobject of my invention is to provide means to cause the staple at thedelivery end of the track to be heldin proper position in line with orwithin a guideway through which the staple is to be driven into a boardor the'like.

To such end the invention comprises the novel details of improvementhereinafter more fully set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein- Figure 1 is a front elevation of a stapledrivingmechanism embodying' my invention. Fig. 2 is a plan View of partthereof, partly in section, on the line 2 2 in Fig. 1. Fig. 3 is avertical Section substantially on the line 3 3 in Fig. l looking in thedirection of the arrows. Fig. fl is a plan view of the magnet. Fig. 5 isa side View thereof, and Fig. 6 is a detail section substantially on theline 6 G in Fig. 1. p

Similar numerals of reference indicate corresponding parts in theseveral views.

The numeral 1 indicates part of the frame of a staple-driving machine,and 2 indicates generally a staple-driver mounted to slide in a guideway1a in frame 1. Said driver may be reciprocated by means o'lI arm 3,operated by suitable means and pivotally connected with said driver, asby a link 4. The driver 2, which may be of suitable construction, isshown provided with an impressing' or driving head 2a, adapted to slidein a staple-guideway, which in the example illustrated is provided inthe form of a groove 5 in a block 5,

the following is a specifica- -be driven by driver-head 2. Aguideway 5lLis a block 7, shown located 1n which may be supported in a groove 6 inframe l. From said guideway staples are to Alined with the the groove 6,and it may be held therein by suitable means, the block '7 beingprovided with a groove 7 a, alined with the groove 5*, said groovesconstituting' a substantially continuous gnideway for the head 2L totravel in.

At 8 is indicated a track or carrier upon which staples 9 are adapted toslide, the delivery end of said track entering an opening 7b in theblock 7, as indicated in Fig. 3, the end of said track terminating' atsuch a point that the lowermost staple may pass therefrom into thegroove 7a. The extent of movement of driver-head 2L to the left in Fig'.1 is such that said head may pass to the left beyond the end of track 8,sliding' freely past the end of said track to come in position in linewith the head or loop end of a staple, se as to thereafter push a stapleto the right in Fig. 1 through the guideway 5.

At 10 is indicateda eut-olf or follower adapted to slide in the groove,arranged in manner corresponding tothe head 2, (being indicated,.aspartly broken away,) and a spring 11, connected with said cut-off orfollower and with frame 1, normally tends to draw said follower acrossand in line with the end of track 8 to arrest or prevent the feeding' ofstaples therefrom until the proper time. The driving-head 2 is adaptedto engage said eutofl' and to push the latter to the left in Fig. 1 awayfrom in front of track 8.

At 12 is indicated an electromagnet whose pole 121L is located adjacentto the end of track 8, as indicated in Fig. 3, in such position thatwhen the magnet is energized the lowermost staple at the end of thetrack will be attracted and drawn into guideway or groove 7, so as to beheld free from the end of the track, the legs of the staple being thusheld in vertical line in said groove (see Fig. 3) and alined with theguideway 5. The magnet 12 may `be energized in any suitable manner; butby preferencel have provided means for closing the circuit of the magnetwhen the driver about reaches the end of the return stroke after drivinga staple, the circuit thus being broken during the driving stroke. Tothis end I have shown a battery 13, connected at one pole by a wire 14Cwith frame 1 and by a wire 15 with the magnet, a wire 16 leading fromthe magnet to a Contact 17, carried by but insulated from frame 1, andat 18 is indicated a pin or contact guided by said frame and held by aspring 19 projected into the groove 1a in position to be engaged by partof the driver 2 to be pushed outwardly thereby into engagement with saidspring, said pin being in circuit with frame 1 to complete the circuitof the magnet.

At 2O is indicated a guard secured to frame 1 and located adjacent tothe delivery end of track or carrier 8 in such position that the head orloop ends of the staples will engage the same to cause the staples totravel uniformly into guideway "IXL of block 7.

In the positions of the parts shown in Fig. 1 the driver 2 is nearly atthe end of a driving stroke, and the cut-off or follower 10 is in theposition it assumes in front of the end of track 8 to prevent the feedof staples into the staple groove or guideway when the magnet isenergized, the circuit of the magnet now being broken. As the driver 2next moves to the left in Fig. 1 it engages and pushes back the follower10 and passes to the left beyond the end of track 8, and thereupon theappropriate part of the driver engages pin 18 and pushes the same intoengagement with the contact 17. The circuit of the magnet beingthereupon closed, the magnet-pole attracts the lowermost staple anddraws it from the end of the track in the vertical position in guideway7 E, (shown in Fig. 3,) and thus holds the staple in front of thedriverhead 2a. On the neXt forward stroke the driver engages the staplehead'or loop end and pushes the staple forward through the groove orguideway 52L of block 5, the head 2 passing in front of track 8 toprevent another staple feeding therefrom. Meanwhile the driver passesfrom pin 18, and the circuit of the magnet is broken to prevent furtherattraction of the staples on the track. The cutoff 10 under theinfluence of its spring 11 follows the driver-head 2a and passes infront of the end of track 8 as the driver'head passes therefrom andkeeps the staples on the track. The driver thereupon drives the staplefrom the guideway or groove 58L into a board or the like placed adjacentto the end of block 5, and on the neXt return stroke of the driver itpushes back the follower 10, passes to the left of the track, and closesthe circuit of the magnet, and so on as the driver reciprocates.

Any suitable means may be provided for supplying staples to the track 8,and the track may have any suitable position to cause the staples tofeed along the same by gravity; but staples may be caused to feed alongthe track by any suitable means. Furthermore, the circuit for the magnetand the source of electrical energy therefor may be arranged in anysuitable or well-known manner.

Several staple-drivers, tracks, and magnets arranged as substantiallyset forth may be used in a single machine, and the detailsofconstruction set forth may be varied without departing from the spiritof my invention.

Having now described my invention, what I claim is 1. A machine of thecharacter described comprising staple-driving devices, a track leadingthereto, an electromagnet having its pole located adjacent to thedelivery7 end of the track to cause staples to assume proper positionsto be driven by the driving devices, a circuit for said magnet, andmeans to break the circuit during the driving stroke of the drivingdevices, substantially as described.

2. A machine of the character described comprising a staple-guideway, astaple-driver,

a track leading to said guideway to deliver staples thereto, a magnethaving its pole adjacent to said guideway arranged to attract and holdstaples in the guideway in position to be pushed by the driver, acircuit for said magnet, and means to make and break said circuit by andduring the operation of said driver, substantially as described.

3. A machine of the character described comprising a track for staples,a guideway to receive staples from the track, a magnet having a poleadjacent to said guideway to attract and hold staples therein, a driveradapted to push staples along said guide, a circuit for said magnet, anda circuit-controller having a member adapted to be operated by saiddriver to close the circuit when the driver-head has returned to oneside of the track, and to break the circuit when the driver-head moveson the driving stroke, substantially as described.

4. A machine of the character described comprising a track for staples,having a substantially horizontally disposed delivery end,

a horizontally-disposed guideway to receive staples from the track, adriver having a driving-head arranged to travel in said guideway, andacross the end of said track into position behind the head or loop endof a staple, a magnet having a pole permanently located adjacent to theend of said track to attract and hold staples horizontally on edge insaid guideway, a circuit for said magnet provided with contacts, one ofsaid contacts being located in the path of the driver to be operatedthereby to make and break the circuit, substantially as described.

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a circuit for said magnet, contacts for said Signed at New York city, inthe county of circuit adapted to normally break the circuit New York andState oil' New York, this 23d and arranged to be closed by the driver,and day of December, A. D. 1902.-

a follower in said guideway arranged to travel VVILLIAM MCMURRAY. intoline with the end of the track to keep Witnesses: staples thereon and tobe moved beek by said HORACE L. EDGE,

driver, snbstantially as described. WILLIAM EDGE.

